这个应该得等一会儿 此刻抽根烟。。。
看到这个页面的时候，那么恭喜你，编译成功了，如果你没有遇到问题，那你应该去买彩票了，如遇到下面问题，可以参考。
1.Too many files with unapproved license: 2
[INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 15.393 s [INFO] Finished at: 2020-07-01T06:47:43+08:00 [INFO] Final Memory: 79M/277M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.rat:apache-rat-plugin:0.12:check (default) on project flink-parent: Too many files with unapproved license: 2 See RAT report in: C:\Users\18380\myself\coder\flink\target\rat.txt -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :flink-parent解决办法就是跳过认证：
加上 -Drat.skip=true 即 mvn clean install -DskipTests -Drat.skip=true2.Failed to execute goal on project flink-avro-confluent-registry: Could not resolve dependencies
[INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 01:10 h [INFO] Finished at: 2020-07-03T23:23:14+08:00 [INFO] Final Memory: 383M/1304M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal on project flink-avro-confluent-registry: Could not resolve dependencies for project org.apache.flink:flink-avro-confluent-registry:jar:1.12-SNAPSHOT: Failure to find io.confluent:kafka-schema-registry-client:jar:4.1.0 in http://maven.aliyun.com/nexus/content/groups/public was cached in the local repository, resolution will not be reattempted until the update interval of nexus-aliyun has elapsed or updates are forced -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException [ERROR] [ERROR] After correcting the problems, you can resume the build with the command [ERROR] mvn <goals> -rf :flink-avro-confluent-registry解决办法： 分析： 此类问题，就是没在远程仓库里面找到对应的包，那么就手动去找到并且下载。
找到下载地址： http://packages.confluent.io/maven/io/confluent/kafka-schema-registry-client/4.1.0/将上面的包下载下来之后放到该路径下（根据你的本地地址是什么，相对地址一定要填写正确好，mvn编译的时候会去对应的坐标找包）
没有下面的这个路径的话，就自己创建 .m2\repository\io\confluent\kafka-schema-registry-client\4.1.0如下图所示： 然后再次执行下面的命令
mvn clean install -DskipTests -Drat.skip=true终于编译成功了，磕磕绊绊的。下篇就是将编译好的包部署测试一下。
